Housing for public address system



FIG. 1 is a left side elevational view of a public address system showing my new design;

FIG. 2 is top, front perspective view thereof;

FIG. 3 is a side elevational view thereof, the housing rotated to show three faces not visible in FIG. 1; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a housing for a public address system, as shown. 